Definitions of effector

  1. an organ ( a gland or muscle) that becomes active in response to nerve impulses
  2. a nerve fiber that terminates on a muscle or gland and stimulates contraction or secretion
  3. one who brings about a result or event; one who accomplishes a purpose
  4. An effecter.
  5. Sherrington's term for one of the nerve- endings within the muscles, glands, etc.; distinguished from receptor.
  6. One who effects; one who produces or causes; a maker or creator.